Oral cavity cleaning device



FIG. 1 is a front elevational view of an oral cavity cleaning device showing our new design;

FIG. 2 is a left side elevational view thereof, the right side is a mirror image of that shown;

FIG. 3 is a perspective view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view of a second embodiment of the oral cavity cleaning device;

FIG. 6 is a left side elevational view of FIG. 5, the right side is a mirror image of that shown;

FIG. 7 is a perspective view of FIG. 5; and,

FIG. 8 is a rear elevational view of FIG. 5. 

The ornamental design for an oral cavity cleaning device, as shown and described. 